Combined bell and buzzer



Oct. 9, 1923.

J. W. COX

COMBINED BELL AND BUZZER 7 Filed June' 25 192 1 75 Baiiery 75 fiaiiery vChroma; S

Patented Oct. 9, 1923.

V UNITED STATES JOHN W. COX, OF BARABOO, WISCONSIN.

COMBINED BELL AND BUZZER.

Application field June 25, 1921. Serial No. 480,343.

This invention relates toa combined bell and buzzer and it has for itsobject to provide means mounted upon a common supporting frame forelectrically ringing a bell or for electrically actuating a buzzer tothere'by produce distinctive sounds which would indicate to the hearerthe location of the switch which has been closed to create such sound.

It is common practice in the installation of door bells and the like, toprovide a bell of one kind for the front door and a bell of another kindfor the rear door, or a bell for the front door and a buzzer for therear door, so that the person answering the signal will know whether togo to the front door or to the rear door.

It has ordinarily been customary to provide entirely separate units forthe purpose indicated. This has necessitated the installation ofconsiderable additional wiring. A few constructions have been proposedwhich incorporates the buzzer and the bell in a single mechanism, butthese have usually been complicated and expensive to manufacture. It isthe primary purpose of the present invention to provide a structure ofthe character indicated which will be of the utmost simplicity and inwhich the parts are so correlated and combined that the device may bemanufactured at a very small cost.

Further objects and advantages of the invention will be set forth in thedetailed description which follows. v

V In the accompanying drawing:

' Fig. 1 is a dlagrammatic-plan view of a device constructed inaccordance with the invention;

Fig. 2 is an underside plan view thereof; and

Fig. 3 is an end elevation of the insulating strip hereinafter describedand th brackets supporting the same. i

Like numerals designate corresponding parts throughout the severalfigures of the drawing.

In the drawing 5 designates a frame, and

of a part 6 a bell of a usual and well known construction. The hammer 7of the bell is-carried by an armature 8 that is moved when the cores 9of magnets 10 are energized.

The buzzer consists of an armature 11 that is attractedby the cores 12of magnets 13,

when said magnets are energized.

The present invention provides very simple and inexpensive means formounting the magnetswith respect to the frame. This consists of aninsulating strip 14- supported fronr the base 5, at 15, through themedium of out-turned feet or ears. The armatures 8 and 11 carry springs16 and 17 of a usual and well known type and these springs make contact,when the magnets are to bee-nergized, with posts 18 and 19. The lowerend of these posts pass through the frame 5 and are attached toconductors 20 and 21 which are the terminal ends of the windings of themagnets 10 and 13 respectively.

The rear ends of the armatures 8 and 11 are carried by posts 22 and 23,the lower end of which are connected by conductors 24 and 25 with acommon binding post 26.

Binding posts 27 and 28 are connected to conductors 29 and 30respectively. The conductors 29 and 30 constitute the terminals of theother end of the windings of the'magnets 10 and 13 respectively.

By virtue of the arrangement shown, a connection from a battery, such asis indicated at 31, serves to constitute one side of the line to boththe bell and the buzzer.

A buzzer controlling push button 32 which, in use, is usually located atthe rear door of a residence, is connected at 33 to the otherbattery-lead 34. The other side oft-his push button is connected by aconductor 35 with the binding post 28. One side of the bell controllingpush button 36 is connected by a conductor 37 with the binding post 27,while the other side of said connected by a conductor 39 with thebattery lead 3f.l:. j

A box like cover 40 common in electric bell construction covers andprotects the magnets. The operation of the device will be readilyapparent to' those skilled in the art It is to be understood that theinvention is not limited to the precise construction set forth but thatit includes within its purview whatever changes fairly come withineither the terms or the spirit of the appended claims. I

ush button is Having described my invention, what .I claim is:

1. A combined bell and buzzer comprising a supporting frame, a centrallydisposed insulating strip mounted upon edge upon said frame, independentma nets supported upon and projecting from t e ,opposite sides of saidstrip, a bell supported from said frame, a hammer carrying armaturecoacting with one set of,magnets and a buzzer armature coacting with theother set of magnets.

2. A combined bell and buzzer comprising a supporting frame, a narrowplate-like Y strip of insulating material, brackets secured to saidinsulating material and to the frame 15 and supporting said plate-likestrip on edge and longitudinally of the frame, a pair of independentmagnets projecting laterally from each side of the strip and supportedwholly thereby, a bell supported from said frame, a hammer carryingarmature coacting with the magnets at one side of the strip the hammerof which is associated with said bell and a buzzer armature coactingwith the magnets upon the other side of the strip In testimony whereof Ihere unto aflix my signature.

JOHN W. COX.

